CN105226483A - A kind of green (light) laser - Google Patents
A kind of green (light) laser Download PDFInfo
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- CN105226483A CN105226483A CN201510649792.XA CN201510649792A CN105226483A CN 105226483 A CN105226483 A CN 105226483A CN 201510649792 A CN201510649792 A CN 201510649792A CN 105226483 A CN105226483 A CN 105226483A
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Abstract
The invention provides a kind of green (light) laser, this laser comprises: for launching the first diode-pumped laser of the first pump light; For launching the second diode-pumped laser of the second pump light; Be respectively used to the first laser crystal and the second laser crystal that the first and second pump lights are converted to the first fundamental frequency light and the second fundamental frequency light, described first laser crystal is different from described second laser crystal; Nonlinear crystal, for by the first fundamental frequency light and the second fundamental frequency light respectively frequency multiplication be the first frequency doubled light and the second frequency doubled light and by the first fundamental frequency light and the second fundamental frequency light and frequently for and light frequently, and described first frequency doubled light, the second frequency doubled light and and frequently light be respectively green glow; With green glow outgoing mirror, for exporting each green glow of described nonlinear crystal outgoing.The present invention as frequency-doubling crystal by multiply periodic periodical poled crystal, can be realized multi-wavelength green glow and export, effectively can reduce the coherence of laser, weakening laser speckle.
Description
Technical field
The present invention relates to optical field, particularly a kind of green (light) laser.
Background technology
The solid state laser of laser diode (LD) pumping has that volume is little, efficiency is high, the life-span is long, power high, has great application prospect, and wherein the green (light) laser of outgoing green glow is the important laser of a class.The structure of the solid green light laser of LD pumping mainly comprises LD pump light source, laser crystal, frequency-doubling crystal and outgoing mirror.Pump light is converted to fundamental frequency light after absorbing the pump light of LD pump light source transmitting by laser crystal, and fundamental frequency light is by becoming green frequency doubled light after frequency-doubling crystal.
In the solid green light laser of LD pumping, usually adopt a LD pump light source, laser crystal, a nonlinear crystal.The green laser that this kind of laser is launched only has a wavelength, and live width is very narrow, and coherence is strong.This green laser bundle there will be serious speckle effect when being used for the field such as laser display, laser lighting, limits its application.
Summary of the invention
The object of this invention is to provide the green (light) laser that a kind of coherence is low, overcome the speckle effect that existing solid green light laser causes.
For achieving the above object, the invention provides a kind of green (light) laser, comprise two for launch pump light LD pump light source, two for being converted to the laser crystal of fundamental frequency light, the nonlinear crystal being used for fundamental frequency light to be converted to frequency doubled light and green glow outgoing mirror by pump light.
The pump light that described first LD pump light source is launched is absorbed by first laser crystal, the first fundamental frequency light of transmitting; The pump light that described second LD pump light source is launched is absorbed by second laser crystal, the second fundamental frequency light of transmitting;
The wavelength of the first fundamental frequency light described is different from the wavelength of the second fundamental frequency light.
Described nonlinear crystal is multiply periodic periodical poled crystal;
The first fundamental frequency light frequency-doubled conversion that described nonlinear crystal is used for described first laser crystal is launched becomes the first green glow, the second fundamental frequency light frequency-doubled conversion that described second laser crystal is launched is become the second green glow, and two kinds of fundamental frequency light and frequency are converted to the third green glow.
The plane of incidence of described laser crystal is coated with the anti-reflection film of pump light and the high-reflecting film of fundamental frequency light respectively, and exit facet is coated with the anti-reflection film of fundamental frequency light and the high-reflecting film of frequency doubled light;
The plane of incidence of described nonlinear crystal and exit facet are all coated with the anti-reflection film of fundamental frequency light and frequency doubled light.
Described green glow outgoing mirror is plano-concave lens, and wherein the plane of incidence is concave surface, and exit facet is plane.
The concave surface of described green glow outgoing mirror is coated with the high-reflecting film of fundamental frequency light and the anti-reflection film of frequency doubled light, and plane is coated with the anti-reflection film of frequency doubled light.
Described fundamental frequency light can be Single wavelength also can be multi-wavelength.
Angle between the first described fundamental frequency light and the second fundamental frequency light is arbitrary.
The multicycle of described multicycle frequency-doubling crystal can be two, can, more than two, also can be quasi-periodic structure.Described quasi-periodic structure, refers to the irregular arrangement of the domain structure of different length.
According to a further aspect in the invention, a kind of green (light) laser is provided, comprise two for launch pump light LD pump light source, two for being converted to the laser crystal of fundamental frequency light, the nonlinear crystal being used for fundamental frequency light to be converted to frequency doubled light and green glow outgoing mirror by pump light, this green (light) laser comprises speculum further
The emitting light path of described first pump light is anti-parallel to the emitting light path of described second pump light,
Described green glow outgoing mirror is further used for described first fundamental frequency light reflection, along the incident described nonlinear crystal of described nonlinear crystal optical axis,
Described speculum is used for described second fundamental frequency light reflection, along the incident described nonlinear crystal of described nonlinear crystal optical axis.
In accordance with a further aspect of the present invention, provide a kind of green (light) laser, this laser comprises:
The LASER Light Source of multiple diode pumping,
The corresponding multiple laser crystal corresponding to described LASER Light Source, being respectively used to the laser conversion from corresponding LASER Light Source is multiple fundamental frequency light;
Multicycle or quasi-periodic structure nonlinear crystal, for by described multiple fundamental frequency light frequency multiplication being the green glow of multiple wavelength,
Green glow outgoing mirror, for exporting described green glow.
Beneficial effect of the present invention is as follows:
Technical scheme of the present invention passes through two dissimilar laser crystals, launches the fundamental frequency light of at least two kinds of different wave lengths; By multiply periodic frequency-doubling crystal, produce the green glow of at least three kinds of wavelength, significantly reduce the coherence of green glow, can comparatively weak laser speckle effect effectively.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described.
Fig. 1 is the structural representation of the green (light) laser according to the embodiment of the present invention 1 and embodiment 2;
Fig. 2 is the structural representation of the green (light) laser according to the embodiment of the present invention 3;
Fig. 3 is the structural representation of PPLN crystal used in the embodiment of the present invention 1;
Fig. 4 is the structural representation of PPLN crystal used in the embodiment of the present invention 2;
Fig. 5 is the structural representation of PPLN crystal used in the embodiment of the present invention 3;
Fig. 6 is the structural representation of the green (light) laser of the embodiment of the present invention 4.
Description of reference numerals:
110 and 120 is LD pump light source;
130 and 140 is laser crystal;
150 is nonlinear crystal;
160 is green glow outgoing mirror;
111 is the pump light of 110 transmittings;
121 is the pump light of 120 transmittings;
131 is the incident end face of laser crystal 130;
132 is the outgoing end face of laser crystal 130;
133 is the fundamental frequency light that laser crystal 130 is launched;
141 is the incident end face of laser crystal 140;
142 is the outgoing end face of laser crystal 140;
143 is the fundamental frequency light that laser crystal 140 is launched;
151,152 and 153 is green laser;
210 and 220 is LD pump light source;
230 and 240 is laser crystal;
250 is nonlinear crystal;
260 is green glow outgoing mirror;
211 is the pump light of 210 transmittings;
221 is the pump light of 220 transmittings;
231 is the incident end face of laser crystal 230;
232 is the outgoing end face of laser crystal 230;
233 is the fundamental frequency light that laser crystal 230 is launched;
241 is the incident end face of laser crystal 240;
242 is the outgoing end face of laser crystal 240;
243 is the fundamental frequency light that laser crystal 240 is launched;
251,252 and 253 is green laser;
310 and 320 is LD pump light source;
330 and 340 is laser crystal;
350 is nonlinear crystal;
360 is green glow outgoing mirror;
311 is the pump light of 310 transmittings;
321 is the pump light of 320 transmittings;
331 is the incident end face of laser crystal 330;
332 is the outgoing end face of laser crystal 330;
333 is the fundamental frequency light that laser crystal 330 is launched;
341 is the incident end face of laser crystal 340;
342 is the outgoing end face of laser crystal 340;
343 is the fundamental frequency light that laser crystal 340 is launched;
351,352 and 353 is green laser.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.Following examples for illustration of the present invention, but can not be used for limiting the scope of the invention.
Below in conjunction with specific embodiment and accompanying drawing, the present invention is further described, but its restriction of not opposing.
Give a typical structure schematic diagram of green (light) laser of the present invention in FIG.As shown in Figure 1, this green (light) laser comprises: two LD pump light sources 110 and 120, two laser crystals 130 and 140, nonlinear crystal 150 and green glow outgoing mirrors 160.Below the structure of the above-mentioned parts in this green (light) laser, function and realization are illustrated respectively.
LD pump light source 110 is for launching pump light 111, and the wavelength of described pump light can have multiple possibility, and it is corresponding with the absorption spectrum of laser crystal 130.The pump light 111 that laser crystal 130 absorptive pumping light source 110 is launched, converts thereof into fundamental frequency light 133.Preferably, the incident end face of laser crystal 130 is coated with the anti-reflection film of pump light 111 and the high-reflecting film of fundamental frequency light 133, and outgoing end face 132 is coated with the anti-reflection film of fundamental frequency light 133 and is preferably coated with the high-reflecting film of green glow.
LD pump light source 120 is for launching pump light, and the wavelength of described pump light can have multiple possibility, and it is corresponding with the absorption spectrum of laser crystal 140.Laser crystal 140 absorbs the pump light that LD pump light source 120 is launched, and converts fundamental frequency light 143 to.The outgoing end face of laser crystal 140 is coated with the anti-reflection film of pump light 141 and the high-reflecting film of fundamental frequency light 143, and outgoing end face 142 is coated with the anti-reflection film of fundamental frequency light 143 and the high-reflecting film of green glow.
Nonlinear crystal 150 is the periodical poled crystal of multicycle or quasi-periodic structure, and it can be PPLN, PPLT, PPKTP, also can be other periodic polarized crystal.Its role is to, fundamental frequency light 133 is converted to frequency doubled light 151, fundamental frequency light 143 is converted to frequency doubled light 152, fundamental frequency light 133 and 143 and frequency are converted to and frequency light 153.Preferably, the Double End of nonlinear crystal is coated with the broadband anti-reflection film of fundamental frequency light and frequency doubled light.
Output coupling mirror 160 green glow outgoing mirror, the plane of incidence be coated with the high-reflecting film of fundamental frequency light 133 and fundamental frequency light 143 and frequency doubled light 151-152 and and the anti-reflection film of light 153 frequently, one side is coated with frequency doubled light 151-152 and and the anti-reflection film of light 153 frequently in addition.
Two kinds of fundamental frequency light are at least related in the present invention, it does after frequency inverted through nonlinear optical crystal, the green glow of at least three kinds of wavelength can be produced, add the spectral diversity of green glow, can effectively more weak when laser display is applied produce speckle effect, there is very great actual application value.
Embodiment 1:
As one embodiment of the present of invention, as shown in Figure 1, below the structure of the above-mentioned parts in this green (light) laser, function and realization are illustrated respectively.
In this embodiment, LD pump light source 110 is for launching 808nm pump light, and laser crystal 130 is Nd:YVO
4crystal, laser crystal 130 absorbs the 808nm pump light that LD pump light source 110 is launched, and converts the fundamental frequency light 133 that wavelength is 1064nm to.The left side of laser crystal 130 is coated with the high-reflecting film of 1050-1100nm and the anti-reflection film of 800-820nm, and right side 132 is coated with the anti-reflection film of 1050-1100nm and the high-reflecting film of 500-550nm.
LD pump light source 120 is for launching the pump light of 808nm, and laser crystal 140 is Nd:LiYF
4crystal, laser crystal 140 absorbs the 808nm pump light that LD pump light source 120 is launched, and converts the fundamental frequency light 143 that wavelength is 1053nm to.The left side of laser crystal 140 is coated with the high-reflecting film of 1050-1100nm and the anti-reflection film of 800-820nm, and right side 132 is coated with the anti-reflection film of 1050-1100nm and the high-reflecting film of 500-550nm.
Nonlinear crystal 150 is periodically poled lithium niobate (PPLN) material in three cycles, and its cycle is respectively 6.97 μm, 6.9 μm and 6.93 μm, and each Cycle Length is 1mm, and crystal total length is 3mm, as shown in Figure 3.Its role is to, be that the fundamental frequency light 133 of 1064nm is converted to the frequency doubled light 151 that wavelength is 532nm by wavelength, be that the fundamental frequency light 143 of 1053nm is converted to the frequency doubled light 152 that wavelength is 526.5nm by wavelength, the fundamental frequency light 143 of to be the fundamental frequency light 133 of 1064nm and wavelength by wavelength be 1053nm and be frequently converted to wavelength be 529nm with frequency light 153.The both-end of nonlinear crystal is coated with the broadband anti-reflection film of 500-550nm and 1050-1100nm.
Output coupling mirror 160 is green glow outgoing mirror, and the plane of incidence is coated with the high-reflecting film of 1050-1100nm and the broadband anti-reflection film of 500-550nm, and one side is coated with the broadband anti-reflection film of 500-550nm in addition.
In this embodiment, the angle between fundamental frequency light 133 and 143 is 90 degree.
By above device, the green laser with 532nm, 529nm and 526.5nm three-wavelength composition can be produced and export.
Embodiment 2
As an alternative embodiment of the invention, as shown in Figure 1, below the structure of the above-mentioned parts in this green (light) laser, function and realization are illustrated respectively.
In this embodiment, LD pump light source 110 is for launching 808nm pump light, and laser crystal 130 is Nd:YVO
4crystal, laser crystal 130 absorbs the pump light that LD pump light source 110 is launched, and converts the fundamental frequency light 133 that wavelength is 1064nm to.The left side of laser crystal 130 is coated with the high-reflecting film of 1000-1100nm and the anti-reflection film of 800-820nm, and right side 132 is coated with the anti-reflection film of 1000-1100nm and the high-reflecting film of 500-550nm.
LD pump light source 120 is for launching the pump light of 942nm, and laser crystal 140 is Yb:YAG crystal, and laser crystal 140 absorbs the pump light that LD pump light source 120 is launched, and converts the fundamental frequency light 143 that wavelength is 1030nm to.The left side 141 of laser crystal 140 is coated with the high-reflecting film of 1000-1100nm and the anti-reflection film of 930-960nm, and right side 142 is coated with the anti-reflection film of 1000-1100nm and the high-reflecting film of 500-550nm.
Nonlinear crystal 150 is periodically poled lithium niobate (PPLN) material in three cycles, and its cycle is respectively 6.97 μm, 6.8 μm and 6.87 μm, and each Cycle Length is 1.5mm, and crystal total length is 4.5mm, as shown in Figure 4.Its role is to, be that the fundamental frequency light 133 of 1064nm is converted to the frequency doubled light 151 that wavelength is 532nm by wavelength, be that the fundamental frequency light 143 of 1030nm is converted to the frequency doubled light 152 that wavelength is 515nm by wavelength, the fundamental frequency light 143 of to be the fundamental frequency light 133 of 1064nm and wavelength by wavelength be 1030nm and be frequently converted to wavelength be 523nm with frequency light 153.The both-end of nonlinear crystal is coated with the broadband anti-reflection film of 500-550nm and 1000-1100nm.
Output coupling mirror 160 green glow outgoing mirror, the plane of incidence is coated with the high-reflecting film of 1000-1100nm and the broadband anti-reflection film of 500-550nm, and one side is coated with the broadband anti-reflection film of 500-550nm in addition.
Angle between fundamental frequency light 133 and 143 is 90 degree.
By above device, the green laser with 532nm, 523nm and 515nm three-wavelength composition can be produced and export.
Embodiment 3:
As one embodiment of the present of invention, as shown in Figure 2, below the structure of the above-mentioned parts in this green (light) laser, function and realization are illustrated respectively.
Be different from embodiment 1 and 2, LD pump light source 210 for launching 942nm pump light, laser crystal 230 is Yb:YAG crystal, and laser crystal 230 absorbs the pump light that LD pump light source 210 is launched, and converts the fundamental frequency light 233 that wavelength is 1030nm to.The incident end face of laser crystal 230 is coated with the high-reflecting film of 1000-1100nm and the anti-reflection film of 930-950nm, and outgoing end face 232 is coated with the anti-reflection film of 1000-1100nm and the high-reflecting film of 500-550nm.
LD pump light source 220 is for launching the pump light of 808nm, and laser crystal 240 is Nd:LiYF
4crystal, laser crystal 240 absorbs the pump light that LD pump light source 220 is launched, and converts the fundamental frequency light 243 that wavelength is 1053nm to.The incident end face 241 of laser crystal 240 is coated with the high-reflecting film of 1000-1100nm and the anti-reflection film of 800-820nm, and outgoing end face 242 is coated with the anti-reflection film of 1000-1100nm and the high-reflecting film of 500-550nm.
Nonlinear crystal 250 is quasi-periodic periodically poled lithium niobate (PPLN) material, and its cycle is respectively 6.9 μm, 6.85 μm and 6.8 μm of cycles arrange according to the ratio mixing of 1:1:1, and crystal total length is 3mm, as shown in Figure 5.Its role is to, be that the fundamental frequency light 233 of 1030nm is converted to the frequency doubled light 251 that wavelength is 515nm by wavelength, be that the fundamental frequency light 243 of 1053nm is converted to the frequency doubled light 252 that wavelength is 526.5nm by wavelength, the fundamental frequency light 243 of to be the fundamental frequency light 233 of 1030nm and wavelength by wavelength be 1053nm and be frequently converted to wavelength be 521nm with frequency light 253.The both-end of nonlinear crystal is coated with the broadband anti-reflection film of 500-550nm and 1000-1100nm.
Output coupling mirror 260 green glow outgoing mirror, the plane of incidence is coated with the high-reflecting film of 1000-1100nm and the broadband anti-reflection film of 500-550nm and 1000-1100nm, and one side is coated with the broadband anti-reflection film of 500-550nm in addition.
In this embodiment, the angle between fundamental frequency light 233 and 243 is 7 degree.
By above device, the green laser with 515nm, 521nm and 526.5nm three-wavelength composition can be produced and export.
Embodiment 4:
As one embodiment of the present of invention, as shown in Figure 6, below the structure of the above-mentioned parts in this green (light) laser, function and realization are illustrated respectively.
In this embodiment, LD pump light source 310 is for launching 808nm pump light, and laser crystal 330 is Nd:YVO
4crystal, laser crystal 330 absorbs the 808nm pump light that LD pump light source 310 is launched, and converts the fundamental frequency light 333 that wavelength is 1064nm to.The incident end face of laser crystal 330 is coated with the high-reflecting film of 1050-1100nm and the anti-reflection film of 800-820nm, and outgoing end face 332 is coated with the anti-reflection film of 1050-1100nm and the high-reflecting film of 500-550nm.
LD pump light source 320 is for launching the pump light of 808nm, and laser crystal 340 is Nd:LiYF
4crystal, laser crystal 340 absorbs the 808nm pump light that LD pump light source 320 is launched, and converts the fundamental frequency light 343 that wavelength is 1053nm to.The incident end face of laser crystal 330 is coated with the high-reflecting film of 1050-1100nm and the anti-reflection film of 800-820nm, and outgoing end face 332 is coated with the anti-reflection film of 1050-1100nm and the high-reflecting film of 500-550nm.
Nonlinear crystal 350 is periodically poled lithium niobate (PPLN) material in three cycles, and its cycle is respectively 6.97 μm, 6.9 μm and 6.93 μm, and each Cycle Length is 1mm, and crystal total length is 3mm, as shown in Figure 3.Its role is to, be that the fundamental frequency light 333 of 1064nm is converted to the frequency doubled light 351 that wavelength is 532nm by wavelength, be that the fundamental frequency light 343 of 1053nm is converted to the frequency doubled light 352 that wavelength is 526.5nm by wavelength, the fundamental frequency light 343 of to be the fundamental frequency light 333 of 1064nm and wavelength by wavelength be 1053nm and be frequently converted to wavelength be 529nm with frequency light 353.The both-end of nonlinear crystal is coated with the broadband anti-reflection film of 500-550nm and 1050-1100nm.
Output coupling mirror 360 green glow outgoing mirror, the plane of incidence is coated with the high-reflecting film of 1050-1100nm and the broadband anti-reflection film of 500-550nm, and one side is coated with the broadband anti-reflection film of 500-550nm in addition.
Chamber mirror 370, it is coated with the high-reflecting film of 500-550nm and the high-reflecting film of 1050-1100nm.
Fundamental frequency light 333 and 343 is parallel to each other, and fundamental frequency light 333 and the angle exported between light 351/352/353 are 7 degree, and fundamental frequency light 343 angle exported between light 351/352/353 is 7 degree.
By above device, the green laser with 532nm, 529nm and 526.5nm three-wavelength composition can be produced and export.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a green (light) laser, is characterized in that, this laser comprises:
The LASER Light Source of multiple diode pumping,
The corresponding multiple laser crystal corresponding to described LASER Light Source, being respectively used to the laser conversion from corresponding LASER Light Source is multiple fundamental frequency light;
Multicycle or quasi-periodic structure nonlinear crystal, for by described multiple fundamental frequency light frequency multiplication being the green glow of multiple wavelength,
Green glow outgoing mirror, for exporting described green glow.
2. green (light) laser as claimed in claim 1, it is characterized in that, the wavelength of described multiple fundamental frequency light is not identical.
3. a green (light) laser, is characterized in that, this laser comprises:
For launching the first diode-pumped laser of the first pump light;
For launching the second diode-pumped laser of the second pump light;
Be respectively used to the first laser crystal and the second laser crystal that the first and second pump lights are converted to the first fundamental frequency light and the second fundamental frequency light, the wavelength of described first fundamental frequency light is different from the wavelength of described second fundamental frequency light;
Nonlinear crystal, for by the first fundamental frequency light and the second fundamental frequency light respectively frequency multiplication be the first frequency doubled light and the second frequency doubled light and by the first fundamental frequency light and the second fundamental frequency light and frequently for and light frequently, and described first frequency doubled light, the second frequency doubled light and and frequently light be respectively green glow; With
Green glow outgoing mirror, for exporting each green glow of described nonlinear crystal outgoing.
4. green (light) laser as claimed in claim 3, it is characterized in that, described green glow outgoing mirror is plano-concave lens, and the plane of incidence is concave surface, and be formed with high-reflecting film and the green glow anti-reflection film of the first and second fundamental frequency light, exit facet is plane, is formed with green glow anti-reflection film.
5. green (light) laser as claimed in claim 3, is characterized in that,
The emitting light path of described first pump light is different from the emitting light path of described second pump light,
The optical axis of described nonlinear crystal is arranged in described first pump light emitting light path,
Described green glow outgoing mirror is further used for the described reflection of the fundamental frequency light from the second laser crystal, along the incident described nonlinear crystal of described nonlinear crystal optical axis.
6. green (light) laser as claimed in claim 5, is characterized in that,
The plane of incidence (131) of described first laser crystal (130) is formed with the anti-reflection film of the first pump light (111) and the high-reflecting film of the first fundamental frequency light (133) and the second fundamental frequency light (143), exit facet (132) be formed the anti-reflection film of the first fundamental frequency light (133) and frequency doubled light and and the high-reflecting film of light frequently;
The plane of incidence (141) of described second laser crystal (140) is formed with the anti-reflection film of the second pump light (121) and the high-reflecting film of the first fundamental frequency light (133) and the second fundamental frequency light (143), and exit facet (142) is formed with the anti-reflection film of the second fundamental frequency light (143).
7. green (light) laser as claimed in claim 3, it is characterized in that, this green (light) laser comprises speculum further,
The emitting light path of described first pump light is anti-parallel to the emitting light path of described second pump light,
Emergent light from the first laser crystal reflects by described green glow outgoing mirror, along the incident described nonlinear crystal of described nonlinear crystal optical axis,
Emergent light from the second laser crystal reflects by described speculum, along the incident described nonlinear crystal of described nonlinear crystal optical axis.
8. green (light) laser as claimed in claim 7, is characterized in that,
The plane of incidence (331) of described first laser crystal (330) is formed with the anti-reflection film of the first pump light (311) and the high-reflecting film of the first fundamental frequency light (333), and exit facet (332) is formed with the anti-reflection film of the first fundamental frequency light (333);
The plane of incidence (141) of described second laser crystal (140) is formed with the anti-reflection film of the second pump light (121) and the high-reflecting film of the second fundamental frequency light (143), and exit facet (142) is formed with the anti-reflection film of the second fundamental frequency light (143).
9. green (light) laser as claimed in claim 3, it is characterized in that, described nonlinear crystal is the periodical poled crystal with multicycle or quasi-periodic structure.
10. green (light) laser as claimed in claim 3, it is characterized in that, described first fundamental frequency light and the second fundamental frequency light are Single wavelength light beam or multi-wavelength light beam.
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| CN201510649792.XA CN105226483A (en) | 2015-10-09 | 2015-10-09 | A kind of green (light) laser |
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| CN201510649792.XA CN105226483A (en) | 2015-10-09 | 2015-10-09 | A kind of green (light) laser |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101132106A (en) * | 2007-09-07 | 2008-02-27 | 中国科学院长春光学精密机械与物理研究所 | Intracavity sum-frequency mixing full-solid blue laser device for obtaining wavelength of 488nm |
| CN102544995A (en) * | 2010-12-30 | 2012-07-04 | 北京中视中科光电技术有限公司 | Green laser |
| CN104064950A (en) * | 2014-06-19 | 2014-09-24 | 中国科学院光电研究院 | Wavelength conversion element used for multi-wavelength doubled frequencies and/or added frequencies and laser light source |
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- 2015-10-09 CN CN201510649792.XA patent/CN105226483A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101132106A (en) * | 2007-09-07 | 2008-02-27 | 中国科学院长春光学精密机械与物理研究所 | Intracavity sum-frequency mixing full-solid blue laser device for obtaining wavelength of 488nm |
| CN102544995A (en) * | 2010-12-30 | 2012-07-04 | 北京中视中科光电技术有限公司 | Green laser |
| CN104064950A (en) * | 2014-06-19 | 2014-09-24 | 中国科学院光电研究院 | Wavelength conversion element used for multi-wavelength doubled frequencies and/or added frequencies and laser light source |
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| Title |
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| 颜博霞 等: "紧凑高效的Nd：YVO4/PPMgLN腔内倍频3.8 W连续绿光激光器", 《中国激光》 * |
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